Best Extra Long Drill Bits Under $50 (2026)
We ranked extra long drill bits under $50 by a value score combining length, material (HSS/coating), shank compatibility, and expected durability for common trade and DIY uses
The Verdict
- Best Overall: BOSCH 1-Piece Extra Long Drill Bit 5/16 in x 12 in (Pack of 3) — Best for common long-reach jobs: compact 12-inch length and reliable construction suited to general-purpose drilling
- Best Value: 1/2 in x 10 in extra length drill bit (DWDDL series) — Best budget extra length option: 10-inch HSS design for extended reach where a mid-length bit is sufficient
Top Picks
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1
Best Overall BOSCH 1-Piece Extra Long Drill Bit 5/16 in x 12 in (Pack of 3)
Best for common long-reach jobs: compact 12-inch length and reliable construction suited to general-purpose drilling
Aircraft black oxide drill bit with speed helix for faster drilling in light-gauge metal, wood, and plastic. Per-pack info; longer life and reduced heat. One customer notes good quality and length enough to drill through walls
- faster drilling
- longer bit life
- versatile for metal, wood, plastic
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2
Best Value 1/2 in x 10 in extra length drill bit (DWDDL series)
Best budget extra length option: 10-inch HSS design for extended reach where a mid-length bit is sufficient
High-speed steel drill bit with extra length for reach and black oxide finish for lubricity. Customers note sharpness and long flute length, with mixed durability feedback
- extra length for reach
- black oxide lubrication
- round shank versatility
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3
DWDDL18X1/8 1/8" x 18" High Speed Steel Drill Bit
Best for very deep, small-diameter holes: 18-inch HSS length optimized for precision reach in tight spots
High-speed steel drill bit with extra length for reach. Durable with wear resistance and good cutting performance; some users report issues with durability and straightness
- extra long reach for drilling
- black oxide for lubricity
- round shank for broad compatibility
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4
27/64" x 18" high speed steel drill bit, extra long DWDDL
Best for long 27/64-inch holes: 18-inch HSS profile built to maintain rigidity while drilling deeper holes
High-speed steel drill bit with extra length for reach. Provides hardness and toughness with lubricity from black oxide coating. Customers note sharpness and long flute length, with mixed durability feedback
- extra-long reach
- black oxide lubricity
- round shank versatility
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5
Drill America 15/32" x 18" HSS Extra Long Drill Bit
Best for corrosion resistance needs: 18-inch HSS with black-oxide finish aimed at longer tool life in typical environments
High-speed steel drill bit with extra reach for general purpose drilling. Features lubricity from black oxide finish and round shank for versatile toolholding; designed for chip evacuation in counterclockwise/right-hand cut operations. Noted for length and quality with mixed durability/sharpness feedback
- extra-long reach
- black oxide lubricity
- round shank versatility
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6
19/64 x 18 in high-speed steel extra long drill bit
Best balanced option for mid-sized drilling: 19/64-inch diameter with 18-inch reach and HSS construction for general jobs
High-speed steel drill bit with extra length for reach. Features black oxide for lubricity and coolant pockets near the edge; round shank for versatile toolholding. Customers note long flute length but mixed durability and sharpness
- extra-long length
- black oxide lubricity
- round shank versatility
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7
5/8" x 18" HSS Extra Long Drill Bit, DWDDL Series
Best for larger-diameter deep drilling: 5/8-inch, 18-inch HSS bit designed to handle bigger through-holes with extended reach
High-speed steel drill bit with extra length for reach. Helps with general drilling, features black oxide for lubricity and chip evacuation near the edge. Customers note sharpness and quality, with mixed durability and accuracy feedback
- extra-long reach
- sharpness and quality noted
- round shank versatility
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8
DWDDL12X3/4 3/4" x 12" HSS Extra Long Drill Bit
Best for heavy-duty 3/4-inch applications: 12-inch HSS long-reach bit made for larger-diameter holes with improved stiffness
High-speed steel drill bit designed for extra reach with good hardness and toughness. Users note quality and sharpness, with mixed durability feedback
- extra-long reach for deep holes
- black oxide coating improves lubrication
- versatile round shank for various toolholders
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9
DWDDL12X11/16 high-speed steel extra long drill bit
Best for extended-reach versatility: long HSS profile suited to a range of trades needing deeper penetration and reliable cutting
High-speed steel drill bit with extra length for reach. Good hardness and wear resistance with lubricity from black oxide; suitable for general-purpose drilling. Some customers note durability and straightness are mixed
- extra long reach for deep holes
- black oxide for lubricity
- round shank for versatile toolholding
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10
33/64" x 12" HSS extra long drill bit, 1/2" shank
Best for secure chucking with larger shank: 12-inch HSS extra-long bit offering a 1/2-inch shank for stable tool engagement
HSS drill bit designed for long reach in iron and steel families. Features black oxide for lubricity and coolant at the cutting edge. Customers note good functionality and sharpness, with mixed durability and accuracy experiences
- extra-long reach
- black oxide lubricity
- HSS general purpose